Finding the Fourth Proportional to 1,213,474,357.23, 1,674,118,123.10 and 704,750,467.18
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Solution
The fourth proportional to 1,213,474,357.23, 1,674,118,123.10 and 704,750,467.18 is: 972,278,913.30
Step by Step Solution
- Step 1: Write the proportion equation
1,213,474,357.23 : 1,674,118,123.10 = 704,750,467.18 : x - Step 2: Convert to fraction form
1,213,474,357.23/1,674,118,123.10 = 704,750,467.18/x - Step 3: Cross multiply
1,213,474,357.23x = 1,674,118,123.10 × 704,750,467.18 - Step 4: Simplify right side
1,213,474,357.23x = 1,179,835,529,369,229,568 - Step 5: Solve for x
x = 1,179,835,529,369,229,568/1,213,474,357.23 - Step 6: Final answer
x = 972,278,913.30
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.